Goodman Manufacturing was founded by HVAC dealer, Harold V. Goodman, in 1975 as a manufacturer of flexible air ducts and plastic blade registers. However, he turned his sights to fulfill a dream of manufacturing affordable HVAC equipment for households across the United States of America and beyond.

In 1982, the company acquired Janitrol and entered the HVAC market, expanding its product offering in 1986 to include gas heating products.

Harold V. Goodman died in 1996 and was succeeded by Frank H. Murray who